Device for crimping feerules on air hose



'Dea 21, 194.3.:

I l DEVICE FOR CRIMPING FERRULES ON AIR HOSE Filed March 9, l21.942

FIG. 2'

A TTOR/VEV Patented Dec. 2l, 1943 Bernard w. Wiuinger, El Monte, Calif.,'assigner to Socony-Vacuum Oil Company,

Incorporated,

New York, N. Y., a corporation of New York Application March 9, 1942,Serial No. 434,019

1 Claim.

The object of the invention is to provide an inexpensive and eiectivedevice for crimping ferrules on hose adapted to convey uids underconsiderable pressure; such as air hose.

Air pressure hose and the like is formed of a plurality of layers ofstrong cotton fabric saturated and covered with rubber or a substitutedentations extending partially around the ferrule. These devices arebulky and heavy, and the strength of the grip which they produce leavesmuch tobe desired.

I havevdiscovered that a much stronger grip of the ferrule on the hosemay be produced by rolling it by a. crimping wheel or wheels, thusproducing a. crimp of any desired depth around the entire circumferenceof the ferrule. I have also devised an apparatus of small cost, whichmay be' held in the hand and is adapted to be carried in the tool chestof an automobile or truck, by means of which this circumferentialalignment crimp may beapplied for making repairs on the road.

This apparatus and its operation are illustrated in the appendeddrawing, in which Fig. 1 is a longitudinal vertical section;

Fig. 2 is a plan view, and

Fig. 3 is av partial cross section and elevation as on the line 3--3 ofFig. l, on a. somewhat enlarged scale. u

Referring to the drawing, a rectangular metal base block I0 is providedwith one or more drilled holes ll to receive standard sizes of'hoseferrules .|2. A second block i3 carries a. crimping wheel Il having oneor more circumferential ridges' I5, these ridges having milled orroughened faces as shownlin Fig. 3. The crimping wheel is attached to ashaft I6 which is rotatcd by a hand crank Il.

The two blocks are held together by a yoke Ill4 pivoted in the baseblock as at I9 and carrying a cam'20 actuated by a thumb lever 2|. Aprojection 22 from the lower face of the upper block ts into acorresponding grove or grooves 23 in the base block, to hold thecrimping wheel in with a ferrule placed in one of the bores Il. Thesingle wheel may thus be used to crimp a ferrule in either bore IVI byraising the yoke to the vertical position and sliding the upper blockendwise on the lower to the desired position. v

When thehose with a ferrule slipped over its end is `placed in -a boreIt of corresponding size, the lever 2| is pressed downward gently -tobring the crimping wheel into relatively light contact with the ferrule.The crank I1 is then revolved and the pressure on lever 2l beingcontinued,

the milled faces of ridges I5 cause thel ferrule to i revolve andproduce a groove or grooves in the metal of the ferrule, these groovesbeing continuous' around its circumference and locking the hose in theferrule in the tightest possible manner.

I claim as my invention:

In a. device for crimping hose ferrules: a bored block having alateral-bore to receive and rotatably support the end of a hose with a.ferrule thereon, said bore having an open upper side, exposing theferrule to be crimped; a superimposed 'upper block carrying a rotatablecrimping Wheel and a crank arranged to rotate said wheel, said wheelhaving a circumferential milled ridge projecting below the lowersurfaceV of the upper block and into the open upper side of said boreand into contact with said ferrule when -said blocks are closelyapproached, and cam means swingingly supported by said bored block andengaging the upper surface of the upper block, whereby swinging of saidcam means in one direction will progressively force said blocks towardeach other while swinging `the cam means in the other direction willrelease the .upper block 4to permit thewithdrawal of the crimpingwheelirom the bore.

. BERNARD w. wnmNGER.'

